SAN FRANCISCO, CALIFORNIA, July 2, 2014 – Pattern Energy Group Inc. (NASDAQ: PEGI) (TSX: PEG) ("Pattern Energy"), today announced it has closed on its commitment to acquire 172 megawatts (MW) of owned interest in the 218 MW Panhandle 1 wind project from Pattern Energy Group LP ("Pattern Development") for a total cash consideration of US$124.4 million. The balance of the project has been acquired from Pattern Development by three institutional tax equity investors.

"This acquisition adds 16% to our operating capacity and marks our third project to successfully reach completion this year," said Mike Garland, President and CEO of Pattern Energy. "It is the second project we have acquired from Pattern Development that has gone into operation since our IPO – again demonstrating the value of that strategic partnership – and we anticipate their extensive pipeline will create more opportunities that will help us meet or exceed our growth plans."

Panhandle 1 is located in Carson County, Texas, and consists of 118 General Electric 1.85 MW wind turbines. The facility is utilizing Texas' new Competitive Renewable Energy Zone (CREZ) transmission infrastructure, which connects to the state's main power grid operator, Electric Reliability Council of Texas (ERCOT).

"Panhandle 1 is located on one of the best wind sites in the U.S. with a strong wind resource and excellent access to transmission," added Garland. "The strength and reliability of the wind, coupled with an unleveraged finance structure, will result in stable, steady cash flows from the project."

The Panhandle 1 project created more than 275 construction jobs and 11 permanent operations and maintenance positions. According to statistics from the U.S. Energy Information Agency, it will generate clean, renewable electricity for up to 60,000 Texas homes each year without using any of the region's limited water supplies.

Approximately 77% of the expected output of Panhandle 1 is contracted under a 13-year energy price hedge, with an A-/Baa2 credit-rated affiliate of Citibank, with the balance sold at ERCOT's spot market prices.

[1] This forward looking measure of run-rate CAFD contribution from Panhandle 1 is a non-GAAP measure that cannot be reconciled to net cash provided by operating activities as the most directly comparable GAAP financial measure without unreasonable effort. A description of the adjustments to determine CAFD can be found on page 71 of Pattern Energy's 2013 Annual Report on Form 10-K.

About Pattern Energy

Pattern Energy Group Inc. (Pattern Energy) is an independent power company listed on the NASDAQ ("PEGI") and Toronto Stock Exchange ("PEG"). Pattern Energy has a portfolio of eleven wind power projects, including one project it has agreed to acquire, with a total owned interest of 1,472 MW, in the United States, Canada and Chile that use proven, best-in-class technology. Pattern Energy's wind facilities generate stable long-term cash flows in attractive markets and provide a solid foundation for the continued growth of the business. For more information, visit www.patternenergy.com.

Cautionary Statement Regarding Forward-Looking Statements

Certain statements contained in this press release constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 and "forward-looking information" within the meaning of Canadian securities laws, including statements regarding the cash purchase price multiple on run-rate CAFD contribution from the project, the ability to complete any other anticipated transactions with Pattern Development, the ability of Pattern Development's pipeline to support Pattern Energy growth plans, the ability of receive stable steady cash flows from the project, and the number of Texas homes for which the project will generate electricity. These forward-looking statements represent the Company's expectations or beliefs concerning future events, and it is possible that the results described in this press release will not be achieved.

Any forward-looking statement speaks only as of the date on which it is made, and, except as required by law, the Company does not undertake any obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise. New factors emerge from time to time, and it is not possible for the Company to predict all such factors. When considering these forward-looking statements, you should keep in mind the risk factors and other cautionary statements in the documents filed with the SEC and applicable Canadian securities regulatory authorities, including the Company's annual report on Form 10-K. The risk factors and other factors noted therein could cause actual events or the Company's actual results to differ materially from those contained in any forward-looking statement.